Results 251 to 260 of about 12,541,940 (307)

Cell surface CD11c as a neutrophil aging marker molecule

FEBS Open Bio, EarlyView.
Cell surface CD11chi neutrophils were more aged and had better phagocytic function than CD11c−/lo neutrophils. Transcriptomic analysis of CD11chi neutrophils and CD11c−/lo neutrophils in pediatric population showed that the most difference was seen in infants.
Sophia Koutsogiannaki, Fahd Alhamdan, Erik Malm, Marie Bermudez, Samuel Y. Kim, Koichi Yuki   +5 more
wiley   +1 more source

Genetic dissection of human ABCE1 in yeast reveals separable requirements for ribosome recycling and suppression of aberrant reinitiation

FEBS Open Bio, EarlyView.
Human ABCE1 cannot functionally replace its yeast ortholog. Yeast–human chimera analysis identified NBD1 as a major interspecies barrier. Genetic screening yielded hABCE1 revertants that rescue yeast viability but fail to suppress aberrant translation reinitiation in the 3′ UTR.
Eriko Nakata, Yuxin Li, Kei Endo, Koichi Ito   +3 more
wiley   +1 more source

Entrevista a exauditores

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Visible Entropy: A Measure for Image Visibility

2010 20th International Conference on Pattern Recognition, 2010
Image visibility is a fundamental issue in the field of computer vision. This paper investigates the connection between histogram and image visibility, where the concept of entropy is employed to depict the information content of the histogram. It turns out that image visibility is more dependent on the observed intensity levels with higher frequencies
Zujun Hou, Wei-Yun Yau
openaire   +2 more sources

Imaging visible light with Medipix2

Review of Scientific Instruments, 2010
A need exists for high-speed single-photon counting optical imaging detectors. Single-photon counting high-speed detection of x rays is possible by using Medipix2 with pixelated silicon photodiodes. In this article, we report on a device that exploits the Medipix2 chip for optical imaging.
Aaron, Mac Raighne, Colin, Brownlee, Ulrike, Gebert, Dzmitry, Maneuski, James, Milnes, Val, O'Shea, Tilman K, Rügheimer   +6 more
openaire   +2 more sources

Visibility-related image features

Pattern Recognition Letters, 1992
Abstract The intervisibility of two points in a digital grey-scale image array is defined by analogy between the intensity values of the picture elements and surface elevation on topographic surfaces. The distributions of the pairwise visibility (a boolean function) between image points, of the visibility count of the number of points visible from ...
Leila De Floriani, Philippe Jeanne, George Nagy   +2 more
openaire   +2 more sources

Visible Watermarking for Halftone Images

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2007
This letter proposes a visible watermarking scheme for halftone images. It exploits HVS filtering to transform the image in binary domain into continuous-tone domain for watermark embedding. Then a codeword search operation converts the watermarked continuous-tone image into binary domain.
Jeng-Shyang Pan 0001, Hao Luo 0001, Zhe-Ming Lu 0001   +2 more
openaire   +1 more source

Visibility of uncorrelated image noise

SPIE Proceedings, 2010
In this study, we evaluated the effect that pixel size has upon people's preferences for images. We used multispectral images of faces as the scene data and simulated the response from sensors with different pixel size while the other sensor parameters were kept constant.
Jiajing Xu, Reno Bowen, Jing Wang, Joyce E. Farrell   +3 more
openaire   +1 more source

Matching of infrared and visible images

2012 9th International Conference on Fuzzy Systems and Knowledge Discovery, 2012
A new matching method based on improved Nonsubsampled contourlet transform (NSCT) is put forward to solve the problem of low matching precision in matching of infrared and visible images. Firstly, improved NSCT is introduced; then, improved NSCT disassembly is done; next, energy at each little region is calculated to compose circumcircle.
Junshan Li, Lihui Sun, Shijie Zhang, Wei Yang, Rui Wang, Zhi Geng   +5 more
openaire   +1 more source

Adaptive visible watermarking of images

Proceedings IEEE International Conference on Multimedia Computing and Systems, 2003
Digital watermarks are emerging as a tool to provide copyright protection for high quality images and video. Though a lot of work has been done in the area of invisible watermarks, relatively less earlier work exists for visible watermarks. As a consensus on the various issues for invisible watermarks to be legally admissible eludes us, a visible ...
Kankanhalli, Mohan S., Rajmohan, Ramakrishnan, K.R.   +2 more
openaire   +2 more sources